Tangential asks: "I run a small (~100 person) consulting company with developers located in several locations (including SOHO's.) We run a VPN, so network connectivity isn't an issue. I'd like to improve day-to-day interactions between everyone here and I'm thinking of setting up (for lack of a better term) a video-intercom. I want people to be able to see and converse with each other at their desks, much as they would if they were all in the same office. Some of the folks here use Windows and some of us use Linux. I'm looking for a software and hardware solution that will operate pretty well between them and not swamp my systems staff. I need it to carry both the audio and the video connection and it is safe to assume that all workstations and laptops here are at least 1 GHz units. I'd especially like recommendations on which cameras to use on the Linux boxes."